公开(公告)号：US11043812B2

公开(公告)日：2021-06-22

申请号：US16708726

申请日：2019-12-10

申请人： INVENTUS HOLDINGS, LLC

发明人： Aaron J G Epel ,  Mohammadreza Rezaie ,  Matthew D Briercliffe ,  Benjamin D Grindy ,  Sriharsha Veeramachaneni ,  Kenneth A Williams ,  Jay K Limbasiya ,  Gordon W Paynter ,  Gary D Moncrief, Jr. ,  Ryan R. Butterfield

IPC分类号： H02J3/28 ,  G05B13/04 ,  H02J3/32 ,  H02J3/00

摘要： One example includes a forecast engine that generates forecast data that characterizes predicted operating conditions of an energy storage system for a given time period in the future, wherein the predicted operating conditions are based on a load history for a power consuming premises coupled to the energy storage system and on a value history for power provided to and consumed from a power grid. The load history of the power consuming premises characterizes unmetered power transferred to the power consuming premises, metered powered transferred from the power grid to the power consuming premises and metered powered exchanged from the energy storage system to the power grid. In the example, a schedule manager generates an operation schedule for operating the energy storage system. The operation schedule includes charge and discharge patterns for an energy storage source that are tuned to curtail power costs and/or elevate power revenue value.

公开(公告)号：US11017338B2

公开(公告)日：2021-05-25

申请号：US16517428

申请日：2019-07-19

申请人： Enel X North America, Inc.

发明人： John Michael Fife

IPC分类号： G06Q10/06 ,  G01R31/367 ,  G01R31/392 ,  H02J3/28 ,  H02J3/46 ,  H02J13/00 ,  H02J7/00 ,  G06Q30/02 ,  G05B13/02 ,  G06Q50/06 ,  H02J3/14 ,  G05B17/02 ,  G05B13/04 ,  G05F1/66 ,  H02J3/00

摘要： The present disclosure is directed to systems and methods for economically optimal control of an electrical system. Some embodiments employ generalized multivariable constrained continuous optimization techniques to determine an optimal control sequence over a future time domain in the presence of any number of costs, savings opportunities (value streams), and constraints. Some embodiments also include control methods that enable infrequent recalculation of the optimal setpoints. Some embodiments may include a battery degradation model that, working in conjunction with the economic optimizer, enables the most economical use of any type of battery. Some embodiments include techniques for load and generation learning and prediction. Some embodiments include consideration of external data, such as weather.

公开(公告)号：US10931190B2

公开(公告)日：2021-02-23

申请号：US15333177

申请日：2016-10-24

申请人： Inertech IP LLC

发明人： Subrata K. Mondal

IPC分类号： H02J9/06 ,  H02M1/12 ,  H02M3/158 ,  H02M7/537 ,  H02J3/18 ,  H02J3/32 ,  H02M7/487 ,  H02J3/01 ,  H02J3/28

摘要： Systems and methods of the present disclosure involve passive, hybrid, and active filtering configurations to mitigate current harmonics for various electrical loads. One hybrid filtering configuration is medium voltage (MV) active filtering using a DC-DC converter and a multi-level inverter, and low voltage (LV) passive filtering. Another hybrid filtering configuration is MV passive filtering and LV active filtering using a two-level inverter. An active filtering configuration includes both MV and LV active filtering. The present disclosure also features power distribution unit (PDU) transformers electrically coupled to respective power supplies on the LV side of an electrical system. Each PDU transformer includes primary coils in a delta configuration and secondary coils in a wye configuration. The secondary coils are in series with respective leakage inductance coils. The secondary coils and the leakage inductance coils are integrated together into a single unit or module.

公开(公告)号：US10916943B2

公开(公告)日：2021-02-09

申请号：US15561887

申请日：2016-03-22

申请人： NEC CORPORATION

发明人： Takayuki Shizuno

IPC分类号： H02J3/28 ,  H02J3/38 ,  H02J7/00 ,  H02J3/32 ,  G05B15/02 ,  H02J3/46

摘要： A distributed electricity storage system (1) includes a plurality of electricity storage apparatuses (110) which are connected to the same distribution line (50), a determination unit (310) that determines excess or deficit in the distribution line (50), an acquisition unit (320) that acquires, with respect to each of the plurality of electricity storage apparatuses, state information indicating a state of an electricity storage apparatus and direction information indicating an operating direction of a charging direction or a discharging direction, and a selection unit (330) that selects an electricity storage apparatus to be controlled in charging and discharging operations from the plurality of electricity storage apparatuses, using a determination result of the excess or deficient power, the state information, and the direction information.

公开(公告)号：US10862332B2

公开(公告)日：2020-12-08

申请号：US16357653

申请日：2019-03-19

申请人： Rockwell Automation Technologies, Inc.

发明人： Lei Jin ,  Haihui Lu ,  Karthik Palaniappan ,  Ahmed S. Mohamed Sayed Ahmed

IPC分类号： H02J5/00 ,  H02J7/34 ,  G05F1/10 ,  H02J3/38 ,  H02J3/28

摘要： For grid-connected power converter control, a method estimates a d-axis grid voltage from a d-axis reference current modified with a d-axis current, and a q-axis current modified with a filter inductive reactance. The method generates a q-axis grid voltage from a direct current (DC) voltage input modified with the DC bus voltage modified with a notch filter to balance the voltage input and further reduced with the q-axis current. The method modifies the estimated d-axis grid voltage and the q-axis grid voltage by selectively removing second-order harmonics. The method further determines a d-axis voltage output and a q-axis voltage output as a function of the modified estimated d-axis grid voltage and the modified q-axis grid voltage.

公开(公告)号：US10862310B2

公开(公告)日：2020-12-08

申请号：US16300224

申请日：2017-05-08

申请人： Flexgen Power Systems, Inc.

发明人： Pasi Taimela ,  Tony Olivo

IPC分类号： H02J3/38 ,  H02J3/32 ,  H02J3/24 ,  H02J3/28

摘要： A system includes a generator configured to be electrically coupled to a grid, a transmission configured to mechanically couple the generator to a prime mover, a converter circuit configured to be electrically coupled between the grid and an energy storage device, and a controller configured to control the converter circuit and the transmission. The controller may operate the converter circuit to source or sink power in response to a change on the grid meeting a criterion. The controller may be further configured to adjust a transmission ratio of the transmission based on a demand on the generator. The controller may also be configured to cause the transmission to mechanically decouple the generator from the prime mover while maintaining an electrical coupling of the generator to the grid so that the mechanically decoupled generator can contribute current to a fault on the grid.

公开(公告)号：US10855080B2

公开(公告)日：2020-12-01

申请号：US16080385

申请日：2016-02-29

申请人： NEC Corporation

发明人： Koji Kudo

IPC分类号： G06Q50/06 ,  H02J3/28 ,  H02J3/38 ,  G05B15/02 ,  H02J3/14 ,  H02J7/00 ,  H02J3/00

摘要： To efficiently utilize power generated by a renewable energy power source performing output suppression, Provided is a control device (10) including: a first calculation unit (181) that calculates a total excess output in a plurality of power generation devices based on power generation relevant information and an upper limit power generation output in each of the plurality of power generation devices; a second calculation unit (182) that calculates residual excess power information based on the total excess output and storage relevant information in a plurality of energy storage devices absorbing the total excess output; and a transmission unit (191) that transmits power generation suppression control information to each of the plurality of power generation devices based on the residual excess power information.

公开(公告)号：US10833506B1

公开(公告)日：2020-11-10

申请号：US16512511

申请日：2019-07-16

申请人： Robert Manfredi

发明人： Robert Manfredi

IPC分类号： H02J3/38 ,  H02J4/00 ,  H02J3/28

摘要： The hybrid power generator is an emergency electric power generator. The hybrid power generator is configured to generate AC electrical power that is suitable for use in circumstances where the national electric grid has failed. The hybrid power generator comprises a housing and a power reserve circuit. The housing contains the power reserve circuit. The power reserve circuit: a) generates electrical energy using a fuel source; b) generates electrical energy using a photoelectric cell; c) stores the generated electrical energy as chemical potential energy; and, d) distributes the generated and stored electrical energy for use as AC electrical energy.

公开(公告)号：US10819138B2

公开(公告)日：2020-10-27

申请号：US16334720

申请日：2016-11-14

申请人： KOREA ELECTRIC POWER CORPORATION

发明人： Sung-Min Cho ,  Ji-Hoon Im ,  Sung-Eun Lee

IPC分类号： H02J3/28 ,  H02J9/06 ,  H02J7/00 ,  H02J3/00

摘要： A control method and/or an apparatus for an energy storage system having demand control and uninterrupted power supply (UPS) functions and an associated control system is provided. The control method for the energy storage system may include: an operation plan establishment step of predicting power to be consumed in a load, so as to estimate the capacity of energy (UPS capacity) which needs to be charged in the energy storage system in order to provide uninterrupted power supply when a power failure occurs, and the capacity of energy available for demand control; an energy storage system operation step of operating the energy storage system according to an operation plan established in the operation plan establishment step; and a step of re-establishing an operation plan according to an operation state of the energy storage system operated by the energy storage system operation step.

公开(公告)号：US20200293321A1

公开(公告)日：2020-09-17

申请号：US16886484

申请日：2020-05-28

申请人： Strong Force TX Portfolio 2018, LLC

发明人： Charles Howard Cella

IPC分类号： G06F9/38 ,  G06Q30/02 ,  G06N20/00 ,  G06F16/23 ,  G06Q30/06 ,  G06F16/27 ,  G06F16/182 ,  G05B19/418 ,  G06F9/46 ,  G06F9/50 ,  G06K9/62 ,  G06N3/08 ,  G06Q10/04 ,  G06Q10/06 ,  G06Q40/04 ,  G06Q50/06 ,  G06Q50/18 ,  G06N5/04 ,  G06Q20/06 ,  G06Q20/22 ,  G06Q20/38 ,  H02J3/00 ,  H02J3/14 ,  H02J3/28 ,  G06F21/10 ,  G06Q20/40 ,  G06F9/48 ,  G06Q20/36 ,  H04L12/911 ,  G06N3/02 ,  G06N3/04 ,  G06F16/951 ,  G06F9/54 ,  G06Q40/00

摘要： Systems and methods for using analyzed social media data to predict a forward resource market and automatically execute a resource transaction accordingly. An example system may include a machine having a resource requirement and a controller. The controller may include: a resource requirement circuit to determine an amount of a resource needed; a social media data circuit to interpret data from social media data sources; a forward resource market circuit to access a forward resource market; and a market forecasting circuit to predict a forward market price of the resource in response to the interpreted social media data. A resource distribution circuit may execute a resource transaction on the forward resource market in response to the determined amount of the resource and the predicted forward market price.